[ ak-sesh-uh n ]
/ ækˈsɛʃ ən /


verb (used with object)

to make a record of (a book, painting, etc.) in the order of acquisition.
to acquire (a book, painting, etc.), especially for a permanent collection.

Origin of accession

1580–90; < Latin accessiōn- (stem of accessiō) an approach, addition. See access, -ion

Related forms

ac·ces·sion·al, adjectivenon·ac·ces·sion, nounre·ac·ces·sion, nounun·ac·ces·sion·al, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for accessioning

British Dictionary definitions for accessioning


/ (əkˈsɛʃən) /



(tr) to make a record of (additions to a collection)

Derived Forms

accessional, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012